Tanahun District (Nepali: तनहुँ जिल्ला Listen ), a part of Gandaki Zone, is one of the seventy-five districts of Nepal, a landlocked country of South Asia. The district, with Damauli as its district headquarters, covers an area of 1,546 km² and has a population (2001) of 315,237. Previously the town of Bandipur was its district headquarters. This district lies in the middlemost of country Nepal. The Veda Vyas, or the writer of the holy Mahabharata was born in this district near its headquarters Damauli, at the meeting point of river Seti and Madi.